Hide mesh light source but keep the light it EMITS using EEVEE?
You can do it with a shader like this - This will exclude the object from visibility, but will allow the cast lights and shadows to operate. However, since you are using an emission object to cast your &quot;light&quot;, you will need to bake the lighting from it using an Irradiance Volume, before it will show up in the render. Also - remember to set the Blend Mode to Aplha Clip.


To get the full effect, make sure to enable &quot;bloom&quot; in Render Properties.